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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/include/linux/ceph/libceph.h
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@@ -35,6 +35,7 @@
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 #define CEPH_OPT_NOMSGAUTH	  (1<<4) /* don't require msg signing feat */
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 #define CEPH_OPT_TCP_NODELAY	  (1<<5) /* TCP_NODELAY on TCP sockets */
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 #define CEPH_OPT_NOMSGSIGN	  (1<<6) /* don't sign msgs */
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+#define CEPH_OPT_ABORT_ON_FULL	  (1<<7) /* abort w/ ENOSPC when full */
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 #define CEPH_OPT_DEFAULT   (CEPH_OPT_TCP_NODELAY)
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@@ -51,9 +52,10 @@
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 	unsigned long osd_idle_ttl;		/* jiffies */
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 	unsigned long osd_keepalive_timeout;	/* jiffies */
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 	unsigned long osd_request_timeout;	/* jiffies */
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+	u32 read_from_replica;  /* CEPH_OSD_FLAG_BALANCE/LOCALIZE_READS */
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 	/*
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-	 * any type that can't be simply compared or doesn't need need
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+	 * any type that can't be simply compared or doesn't need
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 	 * to be compared should go beyond this point,
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 	 * ceph_compare_options() should be updated accordingly
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 	 */
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@@ -63,6 +65,7 @@
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 	int num_mon;
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 	char *name;
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 	struct ceph_crypto_key *key;
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+	struct rb_root crush_locs;
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 };
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 /*
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@@ -72,6 +75,7 @@
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 #define CEPH_OSD_KEEPALIVE_DEFAULT	msecs_to_jiffies(5 * 1000)
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 #define CEPH_OSD_IDLE_TTL_DEFAULT	msecs_to_jiffies(60 * 1000)
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 #define CEPH_OSD_REQUEST_TIMEOUT_DEFAULT 0  /* no timeout */
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+#define CEPH_READ_FROM_REPLICA_DEFAULT	0  /* read from primary */
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 #define CEPH_MONC_HUNT_INTERVAL		msecs_to_jiffies(3 * 1000)
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 #define CEPH_MONC_PING_INTERVAL		msecs_to_jiffies(10 * 1000)
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@@ -83,11 +87,13 @@
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 #define CEPH_MSG_MAX_MIDDLE_LEN	(16*1024*1024)
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 /*
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- * Handle the largest possible rbd object in one message.
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+ * The largest possible rbd data object is 32M.
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+ * The largest possible rbd object map object is 64M.
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+ *
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  * There is no limit on the size of cephfs objects, but it has to obey
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  * rsize and wsize mount options anyway.
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  */
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-#define CEPH_MSG_MAX_DATA_LEN	(32*1024*1024)
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+#define CEPH_MSG_MAX_DATA_LEN	(64*1024*1024)
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 #define CEPH_AUTH_NAME_DEFAULT   "guest"
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@@ -185,7 +191,7 @@
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 #define RB_CMP3WAY(a, b) ((a) < (b) ? -1 : (a) > (b))
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 #define DEFINE_RB_INSDEL_FUNCS2(name, type, keyfld, cmpexp, keyexp, nodefld) \
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-static void insert_##name(struct rb_root *root, type *t)		\
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+static bool __insert_##name(struct rb_root *root, type *t)		\
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 {									\
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 	struct rb_node **n = &root->rb_node;				\
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 	struct rb_node *parent = NULL;					\
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@@ -203,11 +209,17 @@
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 		else if (cmp > 0)					\
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 			n = &(*n)->rb_right;				\
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 		else							\
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-			BUG();						\
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+			return false;					\
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 	}								\
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 									\
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 	rb_link_node(&t->nodefld, parent, n);				\
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 	rb_insert_color(&t->nodefld, root);				\
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+	return true;							\
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+}									\
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+static void __maybe_unused insert_##name(struct rb_root *root, type *t)	\
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+{									\
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+	if (!__insert_##name(root, t))					\
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+		BUG();							\
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 }									\
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 static void erase_##name(struct rb_root *root, type *t)			\
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 {									\
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@@ -269,6 +281,8 @@
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 extern struct kmem_cache *ceph_dentry_cachep;
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 extern struct kmem_cache *ceph_file_cachep;
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 extern struct kmem_cache *ceph_dir_file_cachep;
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+extern struct kmem_cache *ceph_mds_request_cachep;
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+extern mempool_t *ceph_wb_pagevec_pool;
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 /* ceph_common.c */
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 extern bool libceph_compatible(void *data);
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@@ -277,11 +291,15 @@
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 extern int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid);
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 extern void *ceph_kvmalloc(size_t size, gfp_t flags);
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-extern struct ceph_options *ceph_parse_options(char *options,
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-			      const char *dev_name, const char *dev_name_end,
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-			      int (*parse_extra_token)(char *c, void *private),
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-			      void *private);
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-int ceph_print_client_options(struct seq_file *m, struct ceph_client *client);
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+struct fs_parameter;
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+struct fc_log;
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+struct ceph_options *ceph_alloc_options(void);
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+int ceph_parse_mon_ips(const char *buf, size_t len, struct ceph_options *opt,
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+		       struct fc_log *l);
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+int ceph_parse_param(struct fs_parameter *param, struct ceph_options *opt,
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+		     struct fc_log *l);
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+int ceph_print_client_options(struct seq_file *m, struct ceph_client *client,
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+			      bool show_all);
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 extern void ceph_destroy_options(struct ceph_options *opt);
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 extern int ceph_compare_options(struct ceph_options *new_opt,
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 				struct ceph_client *client);
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@@ -289,6 +307,7 @@
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 struct ceph_entity_addr *ceph_client_addr(struct ceph_client *client);
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 u64 ceph_client_gid(struct ceph_client *client);
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 extern void ceph_destroy_client(struct ceph_client *client);
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+extern void ceph_reset_client_addr(struct ceph_client *client);
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 extern int __ceph_open_session(struct ceph_client *client,
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 			       unsigned long started);
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 extern int ceph_open_session(struct ceph_client *client);
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@@ -297,10 +316,6 @@
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 /* pagevec.c */
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 extern void ceph_release_page_vector(struct page **pages, int num_pages);
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-
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-extern struct page **ceph_get_direct_page_vector(const void __user *data,
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-						 int num_pages,
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-						 bool write_page);
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 extern void ceph_put_page_vector(struct page **pages, int num_pages,
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 				 bool dirty);
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 extern struct page **ceph_alloc_page_vector(int num_pages, gfp_t flags);